Changeset 5045

Timestamp:

11/26/07 14:01:30 (5 years ago)

Author:

khali

Message:

Drop detection of the Philips Semiconductors PCA9540. This is an I2C
multiplexer, it should be handled transparently at the kernel level.
On top of that, it can't be detected reliably, and the pca9540 driver
doesn't even exist in Linux 2.6.

Location:

lm-sensors/branches/lm-sensors-3.0.0

Files:

• CHANGES (modified) (1 diff)
• prog/detect/sensors-detect (modified) (2 diffs)

lm-sensors/branches/lm-sensors-3.0.0/CHANGES

@@ -1 +1 @@
 lm-sensors CHANGES file
 -----------------------
+
+SVN
+  sensors-detect: Drop PCA9540 detection
 
 3.0.0 (2007-11-24)

lm-sensors/branches/lm-sensors-3.0.0/prog/detect/sensors-detect

@@ -1463 +1463 @@
      },
      {
-       name => "Philips Semiconductors PCA9540",
-       driver => "pca9540",
-       i2c_addrs => [0x70],
-       i2c_detect => sub { pca9540_detect(@_); },
-     },
-     {
        name => "Smart Battery",
        driver => "smartbatt",
@@ -5212 +5206 @@
 
   return 7;
-}
-
-# $_[0]: A reference to the file descriptor to access this chip.
-# $_[1]: Address
-# Returns: undef if not detected, 1 if detected
-# Detection is rather difficult, since the PCA9540 has a single register.
-# Fortunately, no other device is known to live at this address.
-sub pca9540_detect
-{
-        my ($file, $addr) = @_;
-        my $reg = i2c_smbus_read_byte($file);
-
-        return if ($reg & 0xfa);
-        return if $reg != i2c_smbus_read_byte($file);
-        return if $reg != i2c_smbus_read_byte($file);
-        return if $reg != i2c_smbus_read_byte($file);
-
-        return 1;
 }